Hi I'm working on a project where I generate pulses using digitalwrite(HIGH/LOW) and the pulse width is 4us.
How can I decrease this pulse time?
Using a ESP32, use the HRT (high resolution timer) timer. The ESP32 can do a 12.5 nano second pulse width.
4 usec is the highest resolution of the Uno/Mega AVR boards.
Use direct port mapping. That way is as quick as you can get.
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How short do you need?
A hardware solution would be an edge-triggered one-shot.
Decrease it to what?
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